//
// Copyright (c) 2010 Luís Reis
//
// MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
using System;

namespace Pine.Core
{
	public delegate void DynamicConstructor(DynamicType type, ValueList list);
	public delegate Value FieldGetter(DynamicType type, string fieldname);
	public delegate Value FieldSetter(DynamicType type, string fieldname, Value val);
	
	public class DynamicType : ClassType
	{
		public DynamicConstructor ConstructorFunction { get; private set; }
		public FieldGetter FieldGetFunction { get; private set; }
		public FieldSetter FieldSetFunction { get; private set; }
		
		public DynamicType () : this(null) {}
		
		public DynamicType (IScope scope) : base(scope)
		{
		}
		
		public DynamicType (IScope scope, DynamicConstructor ctor, FieldGetter fget, FieldSetter fset)
			: this(scope)
		{
			ConstructorFunction = ctor;
			FieldGetFunction = fget;
			FieldSetFunction = fset;
		}
		
		public override void Invoke (ValueList rightlist)
		{
			ConstructorFunction(this, rightlist);
		}
		
		public override Value FieldGet (string fieldname)
		{
			if (FieldGetFunction == null)
				return NullValue.Null;
			return FieldGetFunction(this, fieldname);
		}
	}
}

